<div dir="ltr">Definitely something to do with the Dizzy if you ask me - weights / springs / vacuum advance. <br><br>Have you run a timing light on it and see what the advance says ad different RPMs? You can mark TDC on the pully with a marker and see what happens when you run up the revs. If it advances steadily as you speed up the motor, then it might be the carbs but I still think it's the dizzy.</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, Aug 11, 2019 at 9:48 AM Peter & Veronica <<a href="mailto:greylinn@ozemail.com.au">greylinn@ozemail.com.au</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div lang="EN-AU"><div class="gmail-m_-7856084927221746017WordSection1"><p class="MsoNormal">....I’d be looking at the needle profiles. A Gunson Colortune is a great help as it allows you to see the combustion across the rev range. I found the correct needle for the HD6 on my Shorrock blower (MG TC) that way.</p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">Cheers</p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">Peter</p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">Sent from <a href="https://go.microsoft.com/fwlink/?LinkId=550986" target="_blank">Mail</a> for Windows 10</p><p class="MsoNormal"><u></u> <u></u></p><div style="border-right:none;border-bottom:none;border-left:none;border-top:1pt solid rgb(225,225,225);padding:3pt 0cm 0cm"><p class="MsoNormal" style="border:none;padding:0cm"><b>From: </b><a href="mailto:healeys@autox.team.net" target="_blank">Perry via Healeys</a><br><b>Sent: </b>Sunday, 11 August 2019 11:09 AM<br><b>To: </b><a href="mailto:eyera3000@gmail.com" target="_blank">i erbs</a>; <a href="mailto:airtightproductions@icloud.com" target="_blank">Steven Kingsbury</a><br><b>Cc: </b><a href="mailto:healeys@autox.team.net" target="_blank">Ahealey help</a><br><b>Subject: </b>Re: [Healeys] Four cylinder woes</p></div><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal"><span lang="EN-US">Steven<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US">Our BN2 has “M” mods using a different cam grind then the factory M grind (Delta Cams) and 10:1 compression. The stock head compression chamber was cleaned up a bit and the ports slightly smoothed. I had to find the right carb needles to make the rev range smoother and to provide consistent performance. Took a bit of trail and error. Also had to play with the static timing but did not have to re curve the distributor. I run a few more degrees than stock but that has a lot to due with the cam grind. Suspect that if the spark plugs fire at 0 RPM to 2500 and from 3200 up, its probably not a plug or distributor problem. The variable is the control of fuel and the mentioned potential problem areas (needles, damper springs and oil in the pots) have a lot to due with controlling the mixture. <u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US">Perry<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p><p class="MsoNormal"><span lang="EN-US">Sent from <a href="https://go.microsoft.com/fwlink/?LinkId=550986" target="_blank">Mail</a> for Windows 10<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p><div style="border-right:none;border-bottom:none;border-left:none;border-top:1pt solid rgb(225,225,225);padding:3pt 0cm 0cm"><p class="MsoNormal"><b><span lang="EN-US">From: </span></b><span lang="EN-US"><a href="mailto:eyera3000@gmail.com" target="_blank">i erbs</a><br><b>Sent: </b>Saturday, August 10, 2019 8:26 PM<br><b>To: </b><a href="mailto:airtightproductions@icloud.com" target="_blank">Steven Kingsbury</a><br><b>Cc: </b><a href="mailto:healeys@autox.team.net" target="_blank">Ahealey help</a><br><b>Subject: </b>Re: [Healeys] Four cylinder woes<u></u><u></u></span></p></div><p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p><div><p class="MsoNormal" style="margin-bottom:12pt"><span lang="EN-US">Distributor advance or vaccum leak issues. <u></u><u></u></span></p><div><p class="MsoNormal"><span lang="EN-US">Ira Erbs<br>Portland, OR<br>typos and artifacts are the fault of my phone<u></u><u></u></span></p></div></div><p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p><div><div><p class="MsoNormal"><span lang="EN-US">On Sat, Aug 10, 2019, 2:04 PM Steven Kingsbury via Healeys <<a href="mailto:healeys@autox.team.net" target="_blank">healeys@autox.team.net</a>> wrote:<u></u><u></u></span></p></div><blockquote style="border-top:none;border-right:none;border-bottom:none;border-left:1pt solid rgb(204,204,204);padding:0cm 0cm 0cm 6pt;margin:5pt 0cm 5pt 4.8pt"><div><div><p class="MsoNormal" style="margin-left:4.8pt"><span lang="EN-US">To start off, my car, an early BN1, #598 was burned up in the Paradise fire and I just bought another BN1 to replace it. The new car has been hot rodded up a bit. Cam, bigger carbs and different pistons so it has a way different compression ratio and has been in this configuration for over ten years I believe. Was told it runs like the wind and came from a reliable and trust worthy person. Well I'm having problems with the car. Up to 2500 RPM, it runs great! When I can get it up to 3200 RPM it runs great again, it's the 2500 to 3200 range where I'm having problems.<u></u><u></u></span></p></div><div><p class="MsoNormal" style="margin-left:4.8pt"><span lang="EN-US"> It feels like it's starving for fuel, or it has too much fuel, it hesitates, feels like it's not running on all cylinders, and generally like a bucking bronco, but then at 3200 or so, she smooths right out and flies!<u></u><u></u></span></p></div><div><p class="MsoNormal" style="margin-left:4.8pt"><span lang="EN-US"> I was told the carbs were set up a little rich. I leaned them out one flat at a time and no difference until they got too lean and wouldn't run well at all. So I took them back to original setting positions. <u></u><u></u></span></p></div><div><p class="MsoNormal" style="margin-left:4.8pt"><span lang="EN-US"> I've checked all gaps, they're all right. Pulled plugs when getting home and they are all fine, a little brown and all even looking. New condenser, new coil, changed to new plugs, I have not checked the timing yet, but with the way it runs below 2500 and above 3000, it seems to be just fine.<u></u><u></u></span></p></div><div><p class="MsoNormal" style="margin-left:4.8pt"><span lang="EN-US"> I am getting the car up in the air Monday as I have new tires to replace the old ones and will do a static timing check at that time. My old four cylinder was a breeze to set up and ran smooth through all revs. What am I missing with an engine set up like an M? Why would things go south between 2500 and 3000 and run fine below and above?<u></u><u></u></span></p></div><div><p class="MsoNormal" style="margin-left:4.8pt"><span lang="EN-US"> All suggestions are welcome and I do have a new fuel pump on order, so fire away. I've been doing things one step at a time to not introduce new problems, but this is the only problem that is consistent.<u></u><u></u></span></p></div><div><p class="MsoNormal" style="margin-left:4.8pt"><span lang="EN-US"> Thanks,<u></u><u></u></span></p></div><div><p class="MsoNormal" style="margin-left:4.8pt"><span lang="EN-US">Steven Kingsbury<u></u><u></u></span></p></div><div><p class="MsoNormal" style="margin-left:4.8pt"><span lang="EN-US"><u></u> <u></u></span></p></div></div></blockquote></div><p class="MsoNormal" style="margin-right:0cm;margin-bottom:12pt;margin-left:4.8pt"><span lang="EN-US">_______________________________________________<br>Support Team.Net <a href="http://www.team.net/donate.html" target="_blank">http://www.team.net/donate.html</a><br>Suggested annual donation $12.75<br><br>Archive: <a href="http://www.team.net/pipermail/healeys" target="_blank">http://www.team.net/pipermail/healeys</a> <a href="http://autox.team.net/archive" target="_blank">http://autox.team.net/archive</a><br><br><a href="mailto:Healeys@autox.team.net" target="_blank">Healeys@autox.team.net</a><br><a href="http://autox.team.net/mailman/listinfo/healeys" target="_blank">http://autox.team.net/mailman/listinfo/healeys</a><br><br>Unsubscribe/Manage: <a href="http://autox.team.net/mailman/options/healeys/eyera3000@gmail.com" target="_blank">http://autox.team.net/mailman/options/healeys/eyera3000@gmail.com</a><u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p><p class="MsoNormal"><u></u> <u></u></p></div></div>_______________________________________________<br>
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